Home / 78,616.66-108,474.09-46,779.34

Finding the Fourth Proportional to 78,616.66, 108,474.09 and 46,779.34

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Solution

The fourth proportional to 78,616.66, 108,474.09 and 46,779.34 is: 64,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,616.66 : 108,474.09 = 46,779.34 : x
  2. Step 2: Convert to fraction form
    78,616.66/108,474.09 = 46,779.34/x
  3. Step 3: Cross multiply
    78,616.66x = 108,474.09 × 46,779.34
  4. Step 4: Simplify right side
    78,616.66x = 5,074,346,337.30
  5. Step 5: Solve for x
    x = 5,074,346,337.30/78,616.66
  6. Step 6: Final answer
    x = 64,545.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.